Portion of a shoe midsole



FIG. 1 is a front perspective view of a portion of a shoe midsoleshowing my new design;

FIG. 2 is a rear perspective view thereof; and,

FIG. 3 is a side view thereof.

The broken lines immediately adjacent to the shaded areas representunclaimed boundaries of the design. The broken line showing of theremainder of the shoe is for illustrative purposes only and forms nopart of the claimed design.

The ornamental design for a portion of a shoe midsole, as shown anddescribed.